Skip Navigation Links
USGS Data Series 423
National Water-Quality Assessment Program
Contents
Data Series 423 Home Page
Foreword
Abstract
Introduction Purpose and Scope Description of Study Objectives Acknowledgments Conversion Factors Abbreviations and Acronyms
Data-Collection and Processing Methods Watershed characteristics Instream Characteristics Biological Communities Laboratory Analysis Data Processing
Data Files
Summary
References
Table 1. Stream/watershed information (108 KB)
NAWQA Home Page EUSE NAWQA Home page DS 423 Home Page